Negative pressure microbubble cleaning machine

Abstract

The utility model provides a kind of negative pressure microbubble cleaning machine, including fuselage, the fuselage is equipped with water tank, the water tank is equipped with circulating water outlet and circulating water inlet, circulating water outlet downstream is equipped with circulating pump, water outlet connector in proper order, circulating water inlet is equipped with filter, water return connector in proper order to upstream direction;The circulating pump includes drive motor and pump head, the pump head is equipped with air inlet pipe, the end of air inlet pipe away from pump head is equipped with air inlet valve;Air inlet pipe is located the pumping side of pump head, air is pumped in using the negative pressure generated when pumping head suction, or air inlet pipe is located the drainage side of pump head, air is pumped in using the bernoulli principle formed by high-speed water flow generated when pump head discharge;Still including the control panel electrically connected with drive motor.The utility model has the advantages of long service life, low energy consumption, and can effectively reduce production procurement cost.

Description

Technical Field

[0001] This utility model relates to the field of cleaning machines, specifically to a negative pressure microbubble cleaning machine. Background Technology

[0002] There are two main methods for cleaning pipelines:

[0003] 1. Pulse cleaning machine: This machine uses an air compressor and a pulse valve. During use, the air compressor pressure usually needs to be set to above 8 bar. The pulse principle is used to alternately spray air and water to create a water hammer effect. The resonance force is used to dislodge dirt from the pipe wall. The drawback of this technology is that the water hammer effect can usually reach more than 10 times the set pressure (8 bar) (this pressure is uncontrollable). It can easily cause the pipe to fall off and damage the system components. At the same time, it is easy for air to remain in the pipe system, forming air locks. It can also easily cause the pipe and connector to fall off, especially some pipes that are already corroded, which can easily cause pipe damage and leakage.

[0004] 2. Water-circulating cleaning machines use water pumps to inject pre-mixed chemical agents into the pipeline system, causing the chemical agents to react with the dirt on the pipe walls, thereby achieving the purpose of cleaning. The drawback of this technology is that it requires a long soaking time to achieve the desired effect, so it takes a lot of time, has low cleaning efficiency, is time-consuming and labor-intensive, and also poses the possibility of corrosion to the pipeline.

[0005] To address the aforementioned issues, the applicant filed a patent application on July 23, 2021, with patent number CN202110836264.0, entitled "Intelligent Microbubble Cleaning Machine." The machine includes a hollow outer shell forming a water storage chamber. The top of the outer shell has a water inlet connected to the water storage chamber. The outer shell is equipped with a water pump, an air pump, a water outlet connector, a water return connector, and a filter. It also includes a tee connector for connecting the water pump outlet, the air pump outlet, and the water outlet connector. The water return connector is connected to the filter inlet, and the filter outlet is connected to the water storage chamber. Furthermore, it includes a control module for controlling the operation of the water pump and the air pump. This invention can be used for cleaning various piping systems, such as heating pipes, refrigeration pipes, plate heat exchangers, water heaters, wall-mounted boilers, air conditioning pipes, condensers, etc., and offers advantages such as fast cleaning speed, high efficiency, enhanced safety, compact size, portability, water conservation, and environmental friendliness.

[0006] The invention patent was granted on March 7, 2025. During the patent period, based on market feedback, it was found that the rubber cup or diaphragm inside the air pump is prone to damage after long-term use, which affects the service life of the equipment. At the same time, the purchase cost of the air pump is also relatively high during production, and it is also relatively power-consuming during operation. Therefore, an improvement was proposed. Utility Model Content

[0007] Based on the above problems, the purpose of this utility model is to provide a negative pressure microbubble cleaning machine with long service life, low energy consumption, and effective reduction of production and procurement costs.

[0008] To address the above problems, the following technical solution is provided: a negative pressure microbubble cleaning machine, comprising a machine body, a water tank, a circulating water outlet and a circulating water inlet, a circulating pump and a water outlet connector arranged sequentially downstream of the circulating water outlet, and a filter and a return water connector arranged sequentially upstream of the circulating water inlet; the circulating pump includes a drive motor and a pump head, the pump head is provided with an air inlet pipe, and an air inlet valve is provided at the end of the air inlet pipe away from the pump head; the air inlet pipe is located on the water suction side of the pump head, utilizing the negative pressure generated when the pump head suctions to draw in air, or the air inlet pipe is located on the drainage side of the pump head, utilizing the Bernoulli principle formed by the high-speed water flow generated when the pump head discharges to draw in air; it also includes a control board electrically connected to the drive motor.

[0009] The present invention is further configured such that the intake valve is an electromagnetic proportional regulating valve; the intake valve is electrically connected to the control board.

[0010] The present invention is further configured such that a first control valve is provided between the circulating pump and the outlet connector or between the circulating water outlet and the circulating pump; when the first control valve is a one-way valve, the one-way valve is opened when the water flows from the circulating pump to the outlet connector; when the first control valve is a solenoid valve, it is electrically connected to the control board and the opening and closing are controlled by the control board.

[0011] The present invention is further provided that a second control valve is provided between the return water connector and the filter or between the filter and the circulating water inlet, which is electrically connected to the control board to control its opening and closing.

[0012] The present invention is further configured such that the filter is installed on the machine body or water tank, and the filter is provided with a replaceable filter element.

[0013] The present invention is further configured such that the water tank is provided with a water inlet and an exhaust outlet.

[0014] The present invention is further provided that the bottom of the water tank is provided with a drain outlet.

[0015] The present invention is further provided that the bottom of the machine body is provided with rollers.

[0016] The present invention is further configured such that a lifting drag bar is provided on the back of the machine body.

[0017] The beneficial effects of this utility model are:

[0018] 1. The outlet and return water connectors are used to connect the two ends of the pipeline being cleaned; the air inlet pipe is directly connected to the pump head or the upstream or downstream position of the pump head (preferably connected to the upstream of the pump head, so that the drawn-in air can be cut, broken and mixed multiple times by the high-speed rotating impeller inside the pump head to form finer microbubbles). When the circulating pump is working, the air is drawn in and mixed to achieve the microbubble rinsing effect; the air inlet valve is used to adjust the air inlet flow rate to form different microbubble water vapor ratios. This structure removes the air pump in the existing patent, avoiding the service life problem caused by the long-term damage of the air pump diaphragm or diaphragm due to long-term use. At the same time, there is no need to drive the air pump, which reduces energy consumption and effectively reduces procurement costs;

[0019] 2. By controlling the opening and closing of the air intake valve through the control panel, the air intake volume can be precisely controlled, thereby achieving precise control of the proportion of microbubbles in the water.

[0020] 3. The first control valve is preferably located between the circulating pump and the outlet connector. When it is a check valve, it can reduce the impact of the check valve opening on the pumping efficiency.

[0021] 4. The second control valve is preferably located between the return water connector and the filter, so as to prevent water in the cleaned pipe from rushing into the water tank due to inertia and causing the water tank to overflow when the machine is stopped. Attached Figure Description

[0022] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a second-view three-dimensional structural diagram of the present invention.

[0024] Figure 3 This is a three-dimensional structural diagram of the water tank of this utility model.

[0025] Figure 4 This is a first-person perspective three-dimensional structural diagram of the present invention in the form of an explosion.

[0026] Figure 5 This is a two-dimensional structural diagram of the explosion from a second perspective of the present invention.

[0027] Figure 6 This is a schematic diagram of the pipeline of this utility model.

[0028] The labels in the diagram mean: 10-Main body; 11-Roller; 12-Lifting rod; 20-Water tank; 21-Circulating water outlet; 22-Circulating water inlet; 23-Water inlet; 24-Exhaust port; 25-Drain port; 30-Circulating pump; 31-Drive motor; 32-Pump head; 40-Water outlet connector; 50-Filter; 60-Return water connector; 70-Air inlet pipe; 71-Air inlet valve; 80-Control panel; 90-Pipeline to be cleaned; 100-First control valve; 110-Second control valve. Detailed Implementation

[0029] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0030] refer to Figures 1 to 6 ,like Figures 1 to 6 The negative pressure microbubble cleaning machine shown includes a body 10, a water tank 20, a circulating water outlet 21, and a circulating water inlet 22. Downstream of the circulating water outlet 21, a circulating pump 30 and a water outlet connector 40 are sequentially arranged. Upstream of the circulating water inlet 22, a filter 50 and a return water connector 60 are sequentially arranged. The circulating pump 30 includes a drive motor 31 and a pump head 32. The pump head 32 has an air inlet pipe 70, and an air inlet valve 71 is located at the end of the air inlet pipe 70 away from the pump head 32. The air inlet pipe 70 is located on the water-drawing side of the pump head 32, utilizing the negative pressure generated when the pump head 32 draws in air; alternatively, the air inlet pipe 70 is located on the drainage side of the pump head 32, utilizing the Bernoulli principle formed by the high-speed water flow generated when the pump head 32 discharges air. The machine also includes a control board 80 electrically connected to the drive motor 31.

[0031] In the above structure, the water outlet connector 40 and the water return connector 60 are used to connect the two ends of the pipe 90 to be cleaned; the air inlet pipe 70 is directly connected to the pump head 32 or the upstream or downstream position of the pump head 32 (preferably connected upstream of the pump head 32, so that the air drawn in can be cut, broken and mixed multiple times by the high-speed rotating impeller inside the pump head 32 to form finer microbubbles). When the circulating pump 30 is working, the air is drawn in and mixed to achieve the microbubble rinsing effect; the air inlet valve 71 is used to adjust the air inlet flow rate to form different microbubble water vapor ratios. This structure removes the air pump in the existing patent, avoiding the service life problem caused by the damage of the air pump diaphragm or diaphragm due to long-term use. At the same time, there is no need to drive the air pump, which reduces energy consumption and effectively reduces procurement costs.

[0032] In this embodiment, the intake valve 71 is an electromagnetic proportional regulating valve; the intake valve 71 is electrically connected to the control board 80.

[0033] In the above structure, the opening and closing degree of the air intake valve 71 is controlled by the control board 80 to achieve precise control of the air intake volume and thus achieve precise control of the proportion of microbubbles in the water.

[0034] In this embodiment, a first control valve 100 is provided between the circulation pump 30 and the outlet connector 40 or between the circulation water outlet 21 and the circulation pump 30; when the first control valve 100 is a check valve, the check valve is opened when the water flows from the circulation pump 30 to the outlet connector 40; when the first control valve 100 is a solenoid valve, it is electrically connected to the control board 80 and its opening and closing are controlled by the control board 80.

[0035] In the above structure, the first control valve 100 is preferably located between the circulating pump 30 and the outlet connector 40. When it is a check valve, it can reduce the impact of the check valve opening on the pumping efficiency. When the first control valve 100 is a solenoid valve, it is opened by the control board 80 before or during the start of the circulating pump 30, and closes after a delay after the circulating pump 30 is shut down, so as to avoid water hammer effect.

[0036] In this embodiment, a second control valve 110 is provided between the return water connector 60 and the filter 50 or between the filter 50 and the circulating water inlet 22, which is electrically connected to the control board 80 to control its opening and closing.

[0037] In the above structure, the second control valve 110 is preferably located between the return water connector 60 and the filter 50. When the machine is stopped, it can prevent the water in the cleaned pipe from rushing into the water tank 20 due to inertia and causing the water tank 20 to overflow. The second control valve 110 is opened by the control board 80 before or when the circulation pump 30 is started, and is closed after a delay when or after the circulation pump 30 is turned off, so as to avoid water hammer effect.

[0038] In this embodiment, the filter 50 is installed on the body 10 or the water tank 20, and the filter 50 is provided with a replaceable filter element (not shown in the figure).

[0039] In the above structure, the filter 50 is preferably installed on the water tank 20.

[0040] In this embodiment, the water tank 20 is provided with a water inlet 23 and an exhaust outlet 24.

[0041] In the above structure, the inlet 23 is used to add water to the water tank 20, and the vent 24 is used to balance the pressure difference inside and outside the water tank 20.

[0042] In this embodiment, the water tank 20 is provided with a drain outlet 25 at the bottom.

[0043] In the above structure, the drain outlet 25 is used to drain the water accumulated in the water tank 20.

[0044] In this embodiment, the bottom of the body 10 is provided with rollers 11.

[0045] In this embodiment, a lifting tow bar 12 is provided on the back of the body 10.

[0046] In the above structure, the roller 11, together with the lifting tow bar 12, facilitates movement and relocation.

[0047] In this embodiment, the filter 50 is equipped with a filter element and a strong magnet.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A negative pressure microbubble cleaning machine, comprising a machine body, wherein the machine body is provided with a water tank, characterized in that: The water tank is provided with a circulating water outlet and a circulating water inlet. Downstream of the circulating water outlet, a circulating pump and a water outlet connector are arranged in sequence. Upstream of the circulating water inlet, a filter and a water return connector are arranged in sequence. The circulating pump includes a drive motor and a pump head. The pump head is provided with an air inlet pipe, and an air inlet valve is provided at the end of the air inlet pipe away from the pump head. The air inlet pipe is located on the pump head's pumping side, using the negative pressure generated when the pump head is pumping to draw in air, or the air inlet pipe is located on the pump head's draining side, using the Bernoulli principle formed by the high-speed water flow generated when the pump head is draining to draw in air. It also includes a control board electrically connected to the drive motor.

2. The negative pressure microbubble cleaning machine according to claim 1, characterized in that: The intake valve is an electromagnetic proportional regulating valve; the intake valve is electrically connected to the control board.

3. The negative pressure microbubble cleaning machine according to claim 1, characterized in that: A first control valve is provided between the circulating pump and the outlet connector or between the circulating water outlet and the circulating pump; when the first control valve is a check valve, the check valve is opened when the water flows from the circulating pump to the outlet connector; when the first control valve is a solenoid valve, it is electrically connected to the control board and its opening and closing are controlled by the control board.

4. The negative pressure microbubble cleaning machine according to claim 1, characterized in that: A second control valve, electrically connected to the control panel, is provided between the return water connector and the filter or between the filter and the circulating water inlet to control its opening and closing.

5. The negative pressure microbubble cleaning machine according to claim 1, characterized in that: The filter is installed on the machine body or water tank, and the filter is equipped with a replaceable filter element.

6. A negative pressure microbubble cleaning machine according to claim 1, characterized in that: The water tank is equipped with a water inlet and an air vent.

7. A negative pressure microbubble cleaning machine according to claim 6, characterized in that: The water tank has a drain outlet at the bottom.

8. A negative pressure microbubble cleaning machine according to claim 1, characterized in that: The bottom of the fuselage is equipped with rollers.

9. A negative pressure microbubble cleaning machine according to claim 1 or 8, characterized in that: The rear of the fuselage is equipped with a lifting tow bar.

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